Engine oil Mobil or PENNZOIL
Mobile 1 syn. doesn’t burn any yet. Never had issues with it.
Mobil 1 5w30 Annual advanced synthetic. We have a garage full of Mustangs heavily modified...all on Mobil 1 full synthetic...always. No engine, turbo, or supercharger issues on these cars as well.
Mobil 1 with no issues change every 3k, rarely top off in between changes
Mobile one is best in every single case, unfortunately its the most expensive for this reason.
I’ve heard valvoline is good too. I use Mobil 1
I personally lean towards affordability, so I run Mobil 1 0w-40 because the local parts stores run sales for $35-40 pretty regularly.
I had a tiny bit blue smoke and thought it was sticky rings.
Ran mobil1 5/30 and it's gone.
Personally I've mostly been using Mobil 1 15w50, as it's almost never run in the winter.
From my knowledge it doesn't matter what brand you put in. Just make sure its quality oil that's rated for your car and do oil changes regularly. I have used Mazda branded Moly 0W-20, Mobil1 Extended Performance 0W-20 and currently Pennzoil Platinum 0W-20. Honestly I can't tell the difference between them at all.
Make sure you don't run Mobil 1. Subaru engines tend to shear Mobil 1 down to a lower weight oil quickly.
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